Glue roll



P. ZALKIVND.

GLUE ROLL.

APPLICATION FILED JULY 8,1920.

Patented July 4, 11922.;

STTE

tries.

GLUE ROLL.

nearest.

Specification of Letters Patent.

Patented July 4, 1922.

Application filed July 8, 1920. Serial No. 394,694.

T 0 all whom, it may concern Be it known that I. PHILIP ZALKiND, acitizen of the United States, residing in the borough of Manhattan,city, county, and State of New York, have invented an Improvement inGlue Rolls, of which the following is a specification. I

This invention relates to an improvement in glue rolls and moreparticularly to glue rolls employed in conjunction with boxing machinesdesigned to fold and seal paper boxes, cartons and various forms ofreceptacles. As ordinarily made and sealed it is necessary, in acquiringaccess to the contents of the form of paper box generally used forcereals and other similar merchandise for example, to disrupt the box inat least some portion thereof, and in the formation of which theordinary type of glue roller answers the purpose of applying theadhesive in the sealing of the box or package. Heretofore, however,various means have been suggested in the use of paper boxes and otherforms of receptacles for making an opening in a predetermined portion ofa box or receptacle for removing the contents thereof. In some of theseforms of providing the opening in the box or receptacle predeterminedportions of the body of the box, and in some instances alsopredetermined portions of the covers or flaps forming the covers, aredesigned to assume a normal position and con" dition in the box orreceptacle and to be separated along predetermined lines to form atongue which may be removed partially from the flaps and partially fromthe body of the receptacle to form an opening to gain access to thecontents of'the box and to be closed and maintained in position so thatportions of the contents of the box or receptacle may be removed fromtime to time and the remaining portion of the contents kept in the boxor receptacle under substantially the same conditions as regards theatmosphere and otherwise as when originally packed. Difficulty, however.has been experienced with this form of box or receptacle in sealing thesame with the usual type of folding and sealing apparatus because of thenecessity of omitting the glue or other adhesive at predeterminedportions of the flaps which form parts of the tongue that is severedfrom the body of the box to form the opening therein, and my presentinvention relates to a form of glue roll adapted. to overcome thisdifficulty.

) In carrying out the invention the ordinary form of glue roll may beemployed and associated in the usual manner with the glue pot or othervessel holding the adhesive and from which to the surface of the glueroll the adhesive may be supplied in any usual or desired manner. In thesurface of the glue roll, I provide an opening in which there is amovable member or plunger, the outer surface of which is preferably madeto conform with the surface of the roller and is nor mally in registrytherewith so that the roller surface is continuous, this being the casewhen the adhesive is applied to the surface of the roller. I also employmeans operative at predetermined times in the revolution of the rollerfor shifting the plunger for instance for withdrawing the movable memberor plunger into the roll so that when this portion of the roll isapplied to the flap or cover or other portion of a box no adhesive willbe applied thereto, whereby, as will be understood, by suitably shapingthe opening or openings in the roll and utilizing the same in the properpositions and in the required number the adhesive maybe omitted fromthose portions of the box or receptacle in Sealing the same in which noadhesive is necessary so that the tongue portion of the receptacleemployed for making the aperturetherein in all parts of the same may befree for use when the opening is to be made therein. 7

In the drawing:

Fig. 1 is a transverse section illustrating a glue roll embodying myinvention. i

Fig. 2 is a similar view showing the parts in the opposite position.

Fig. 3 is a plan view of a glue roll in which my improvement isembodied, and

modified form of the invention as is included in Fig. 3.

Referring to the drawing, the glue roll is indicated at 10 andpreferably comprises a hollow cylindrical member made of metal or anyother suitable material. As illustrated in Fig. 3, the glue roll at theends thereof is provided with collars 11 and 12 by which the glue rollis mounted on a shaft 13, preferably a stationary shaft. while at leastone of the collars that is indicated at 11 is fitted with a sprocket 14connected by a drive chain or otherwise to a suitable source of power bywhich the glue roll is made to revolve, it beciated with a glue pot orother adhesive receptacle in such a mannertha-t the adhesive is appliedto the surface of the glue roll in the turning of the roll.

In a suitable position in the glue roll, I provide the same with anopening 15. In thi's opeIiing there is fitted a plunger The plunger 16is citl1ei" coiine'cted to or made integral with a ring member which maybe made in parts, vone part of which is indicated at 17 and the otherpart at 18. The inner surface of the ring member 18 is provided with acam face l9. while the remainder of 'this inn'er surface of the ringmember 18 is circular as is'also the entire inner surface 20 of the ringmember 17. These parts of the ring member may be connected by suitablebolts QQpasse'd through flanges on the parts oft-he ring member asindicated atQl. Allso'as illustrated in Figs. 1 and 2, the part 18 ofthe ring member is provided with a guide pin 23 fitting; into asoc'ketQ't p'rbvided therefor on the inner face of the roll and fittedwith a spring 25 which extends between the inner surface of theroll-'and'theadjacent face of the part 18 of the ring memherf in thisform of the inventiom'the shaft l3is provided with a projection 26'lvingwithin the ring member and at its extremity fitted with acain roller 27adapted to contact with thecam' face 19 in order to move thering'me'mh'er and plunger at predetermined times in'th'e revolution ofthe glue 'ro'll. As shown in and 2, the part 17 of the ringme nber maybe fitted with adjusting screws 28 'mounted in shoulders 29 thereonand'adapt'ed to engage iwith a reinforced portion of the glue roll asindicated at 30= to insure the proper registry between the face of theplunger member and the surface of the glue roll. v V

In the operation of this apparatus as will he understood, the surfaceUofthe plunger memlier is normally in that position in which it registerswith'the face of theglue roll so that the' same form a continuoussurface. This is illustrated in Fig. 2 and in this positioii'the surfaceof'the glue roll has the glue or other adhesive applied thereto bypassing through theglue pot or in" any other manner. In the otherposition of the glue roll or that shown in Fig. L the eam 'roll e r 27''has passed a predetermined"distance along the cam face l9and in doingso, as will be understoodghas withdrawn ring'memher and the plungerpredetermined distance into theglue'ioll against'th'e action of :thes'pi'ing'25. '7 This, as will be furthermore understooddeaves a surface'of PIBClBtQI' mined configuration conforming tothe outline of the oening in 'the glue roll at which noarllliesiv'e will he applied to "thecover or flaps or other-parts off-"a paper box or other receptacle ,in.the operation of applying the adhesiye,:folding-the parts and sealingthe same. When the glue roll is turned sufficiently far to permit thecam roller 27 to pass off the face of the cam 19 the spring will forcethe ring member and the plunger to their normal positions so that theadjusting screws 28 abut against t e reinforced wall 30 and the face ofthe plunger is again coincident with the surface of the glue roll.

In the form of the invention shown in Fig. 7 4, the glue roll and theplunger are substantially the same as those shown in the other forms ofthe invention. In this form of the invention I also employ a ring member31 havinga cam face as well as a projection secured to the fixed shaftand a calm} roller mounted therein to engage with the cam face to movethe plunger'into the roller predetermined time.

in the revolution of the gliie roll. The mm face which corre spendsto'the cam face'19 is indicated at while the projection "whichcorresponds to the projection 26' is indicated at 33 and the cam roller3 1 is the equivalent of'the cam roller 2?. Associated with tl'iis ring1nein her and either made integral with or connected. thereto andparallel therewith is another ring 'rneinber having .a 'cam face 3 6which is the'ehinplementof the cam 32, and on the fixed 'shaft lii em)lOYfi cam adapted to cooperate with thec ani face so that inthe'revol'utio'n"of.the glue roll the cam 37 is noriiiallv in face '36to maintain the memh' i s and the plunger in that position iil wlll clithe face of the plunger is'coincident with the surface of'th e glueroll. predetermined position of the glne r011, however, inthe.revolutionthereof, the fa-m137ru'n's off the cani face 86 andsimultaneously the c'a1n. 105 rolleril t runs onto the cam face 32,whereby L the plunger and' caiii rings will herlra wn 1" l t KT. I 4 n"into the glue roll to the position indicated in Fi 4, and aftenthe camroller has run off the cam face 32'the cain 37 again engages the 'cam'face 36 so astb retiirn the ring members and. the plunger toil-heirnormal positions inwhich,j'as hereinbe'foije 'statech' the face of theplunger registers iviththe surface of the glue s n. is thiscdnstamae'n,1 15 of t'he c'am members; as will beuiidei'sltoocl, the use ottheguide pin 32 and its socket, 7 together with the "springfor ii t'urfiiing and normally maintaining the ring'memhers and plunger in an'init'ia'l positio'ii, may be 'dispensed with asthe cam 37 cooperatingwith the cam face 36' oii one of the ring members answers the'sa me'purpose: q

lYhile I have herein shown and described my present inventionas usedfo'rapplying the adhesive to the flap endsofapaperho'X or carton for sealingthe same in Sacha man ner as to preclude'the application 9f theaidhesive to pieldeterm ined'phrtions of the flaps,

it will be understood that the' i'ise o f the in i vention is not in anysense of the word limited to this specific purpose, as it may beemployed in various manners and for many purposes. It will also beunderstood that while 1 have herein shown and described the invention asembodied in a glue roll together with mechanism for normally maintainingthe face of the plunger in registry with the surface of the glue rolland withdrawing the plunger so as to depress the face of the same atpredetermined times in the revolution of the glue roll, the invention isnot limited to this particular movement or mechanism for efiecting thesame.

I claim as my invention:

1. In an apparatus of the class described, a stationary shaft, acylinder mounted to revolve on the said shaft and having an openingtherein, a plunger fitting the opening in the cylinder, a cam connectedwith the said plunger, means for normally maintaining the cam andplunger in such a position that the face of the plunger conforms to thesurface of the cylinder, and a cam connected to the said shaft andadapted at predetermined times in the revolution of the cylinder toengage the aforesaid cam to move the same and the plunger to cause theface of the plunger to assume a position beneath the surface of thecylinder.

2. In an apparatus of the class described, a stationary shaft, acylinder mounted to face of the cylinder, and a cam wheel carried by thesaid shaft and adapted at a predetermined time in the revolution of thecylinder to engage the said cam to move the same and the plunger to aposition in which the face of the plunger lies below the surface of thecylinder.

3. In an apparatus of the class described, a stationary shaft, acylinder mounted to turn on the shaft and having. an open ing therein, aplunger fitting the opening in the cylinder, a cam surrounding the saidshaft and connected to the said plunger, a cam wheel carried by the saidshaft, a pin connected to the said cam, a socket member carried by thesaid cylinder and adapted to receive the pin connected to the cam, and aspring coacting between the cylinder and the cam in conjunction with thepin and socket to normally maintain the plunger and cam in a position inwhich the face of the plunger is in conformity with the surface of thecylinder.

Signed by me this 29th day of June, 1920.

PHILIP ZALKIND.

